fold_tree ocaml
type 'a tree =
| Node of 'a tree * 'a * 'a tree
| Leaf;;
let rec fold_tree f a t =
match t with
| Leaf -> a
| Node (l, x, r) -> f x (fold_tree f a l) (fold_tree f a r);;fold_tree ocaml
type 'a tree =
| Node of 'a tree * 'a * 'a tree
| Leaf;;
let rec fold_tree f a t =
match t with
| Leaf -> a
| Node (l, x, r) -> f x (fold_tree f a l) (fold_tree f a r);;Copyright © 2021 Codeinu
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